The False Decretals, a collection of documents that address church law, were composed between 847 and 852 and were intended to reform canon law and support bishops against secular interference. Though the collection was widely accepted in the Middle Ages, even by the papacy, it was exposed as a hoax in the 16th century. Many of the papal letters and decrees included in the collection are forgeries, and among those that are genuine, many show evidence of tampering. Who forged the documents? Discuss
Source: The Free Dictionary